Retry mechanism for Redis connection (MAPCO-4891)

**Describe the bug**
Currently Redis tries to connect once, and if it doesn't work it gives up.
Before, if Redis didn't connect, then the application didn't start.

**Expected behavior**
The connection of Redis shouldn't affect the application. Redis should try reconnecting every specified amount of time.

Start by locating the Redis connection setup and reviewing how a failed initial connection is handled. Check whether the project already exposes a retry interval, then determine how startup behaves when Redis is unavailable. Done means the application can start without Redis and the connection retries at the specified interval.

Written by the indexing model from the issue text.